Patents by Inventor Ichiro Sakamoto

Ichiro Sakamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5710150
    Abstract: Benzazepine derivatives represented by the following general formula (I) useful as arginine vasopressin antagonists or pharmaceutically acceptable salts thereof, pharmaceutical compositions thereof, and difluorobenzazepinone derivatives represented by the following general formulae (II) and (III) which are useful as production intermediates of the compound (I).
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: January 20, 1998
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Nobuaki Taniguchi, Akihiro Tanaka, Akira Matsuhisa, Ken-ichiro Sakamoto, Hiroyuki Koshio, Takeyuki Yatsu
  • Patent number: 5618783
    Abstract: The synthesized inorganic crystalline ion exchange material has a composition represented by the following general formula in an anhydride form:aX.sub.2 O.bSiO.sub.2.cX'O,wherein X represents Na and K; X' represents Ca, or Ca and Mg; b/a is 1.4 to 2.1; c/a is 0.001 to 0.35; K/Na in X.sub.2 O is 0.09 to 1.11; Mg/Ca in X'O is 0 to 100; and K.sub.2 O/SiO.sub.2 is 0.06 to 0.25. The synthesized inorganic crystalline ion exchange material exhibits main shift peaks at least at 1080.+-.6 cm.sup.-1 in Raman scattering spectra in the range of from 900 to 1200 cm.sup.-1. The inorganic ion exchange material of the present invention is excellent in cationic exchange capacity, cationic exchange speed, and anti-solubility, making it useful to be used for a water softener and an alkalinity adjusting agent in detergents.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: April 8, 1997
    Assignee: KAO Corporation
    Inventors: Mikio Sakaguchi, Ichiro Sakamoto, Ryuichi Akagi, Shu Yamaguchi, Masaki Tsumadori
  • Patent number: 5427711
    Abstract: The synthesized crystalline ion exchange material or a hydrate thereof has a chain structure and a composition represented by the following general formula (A) in an anhydride form:xM.sub.2 O.ySiO.sub.2.zM'O, (A)wherein M represents Na and/or K; M' represents Ca and/or Mg; y/x is 0.5 to 2.0; and z/x is 0.005 to 1.0. The chain structure exhibits at least one main scattering peak at 970.+-.20 cm.sup.-1 in Raman spectra. The detergent composition contains the above synthesized inorganic crystalline ion exchange material. The inorganic ion exchange material of the present invention is excellent in both cationic exchange capacity and anti-solubility, making it useful to be used for a water softener and alkalinity regulator in detergents. The detergent composition of the present invention contains an inorganic ion exchange material which has anti-solubility as well as excellent ion exchange capacity and alkaline capacity, thereby offering excellent washing effects and is suitable for the concentration of detergent.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: June 27, 1995
    Assignee: Kao Corporation
    Inventors: Mikio Sakaguchi, Ichiro Sakamoto, Mutsumi Kuroda, Masaki Tsumadori, Motomitsu Hasumi, Yuichi Sakamoto, Ryuichi Akagi, Fumio Sai
  • Patent number: 5340582
    Abstract: Barium sulfate having a specific crystal structure and optical characteristics is disclosed. The crystals have a plate-like structure of which the aspect ratio is 5-100 and the ratio of the square of the circumference of the plate and the area of the orthogonal projection plane is 20:1-150:1. In a preferred embodiment, a thin film of 25 .mu.m thickness with 20% by weight of the barium sulfate powder concentration has a scattering transmittance of 70% or greater and a total transmittance of 85% or greater. The cosmetic compositions to which the barium sulfate is incorporated exhibits excellent extendibility and adhesion to the skin and can effectively hide the spots or freckles on the skin. The cosmetic composition satisfies both the fine naked skin feeling and the skin covering effect, which have never been satisfied by conventional cosmetic compositions.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: August 23, 1994
    Assignee: KAO Corporation
    Inventors: Hiroki Sugasawa, Satoshi Takano, Mikio Sakaguchi, Ichiro Sakamoto, Minoru Iwata, Nariyuki Kurotani, Hideaki Koizumi, Hiroshi Itoh, Risa Maejima
  • Patent number: 5262148
    Abstract: Barium sulfate having a specific crystal structure and optical characteristics is disclosed. The crystals have a plate-like structure of which the aspect ratio is 5-100 and the ratio of the square of the circumference of the plate and the area of the orthogonal projection plane is 20:1-150:1. In a preferred embodiment, a thin film of 25 .mu.m thickness with 20% by weight of the barium sulfate powder concentration has a scattering transmittance of 70% or greater and a total transmittance of 85% or greater. The cosmetic compositions to which the barium sulfate is incorporated exhibits excellent extendibility and adhesion to the skin and can effectively hide the spots or freckles on the skin. The cosmetic composition satisfies both the fine naked skin feeling and the skin covering effect, which have never been satisfied by conventional cosmetic compositions.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: November 16, 1993
    Assignee: KAO Corporation
    Inventors: Hiroki Sugasawa, Satoshi Takano, Mikio Sakaguchi, Ichiro Sakamoto, Minoru Iwata, Nariyuki Kurotani, Hideaki Koizumi, Hiroshi Itoh, Risa Maejima
  • Patent number: 5171572
    Abstract: Barium sulfate having a specific crystal structure and optical characteristics is disclosed. The crystals have a plate-like structure of which the aspect ratio is 5-100 and the ratio of the square of the circumference of the plate and the area of the orthogonal projection plane is 20:1-150:1. In a preferred embodiment, a thin film of 25 .mu.m thickness with 20% by weight of the barium sulfate powder concentration has a scattering transmittance of 70% or greater and a total transmittance of 85% or greater. The cosmetic compositions to which the barium sulfate is incorporated exhibits excellent extendibility and adhesion to the skin and can effectively hide the spots or freckles on the skin. The cosmetic composition satisfies both the fine naked skin feeling and the skin covering effect, which have never been satisfied by conventional cosmetic compositions.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: December 15, 1992
    Assignee: Kao Corporation
    Inventors: Hiroshi Suganuma, Satoshi Takano, Mikio Sakaguchi, Ichiro Sakamoto, Minoru Iwata, Nariyuki Kurotani, Hideaki Koizumi, Hiroshi Itoh, Risa Maejima
  • Patent number: 5145728
    Abstract: An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: September 8, 1992
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Keichiro Saitoh, Tadao Yoshino, Minoru Izawa, Ichiro Sakamoto
  • Patent number: 5045620
    Abstract: Disclosed are oriented polyethylene films having specific elongation and strength, which are excellent in linear tearability and clear tearability, suitably used for packaging and produced by longitudinally stretching a polyethylene resin sheet in which the degree of crosslinking inwardly decreases across the thickness thereof at a draw ratio of at least 5 times at a temperature of not higher than the melting point of a polyethylene resin forming the polyethylene resin sheet, and laterally stretching said sheet 4 to 8 times at a temperature ranging from above the melting point of the polyethylene resin up to 10.degree. C. higher than the melting point thereof.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: September 3, 1991
    Assignee: Tonen Sekiyukagaku K.K.
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Ichiro Sakamoto
  • Patent number: 5043204
    Abstract: An oriented polyethylene film with an excellent moistureproofness and optical property is provided in which the degree of crosslinking is uniform or decreases inwardly across the thickness of the film, and which consists of a composition comprising (A) 50 to 90% by weight of polyethylene with a density of at least 0.935 g/cm.sup.3 and a high load melt index to melt index ratio of at most 100 and (B) 50 to 10% by weight of a petroleum resin or linear low density polyethylene.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: August 27, 1991
    Assignee: TOA Nenryo Kogyo Kabushiki Kaisha
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Keichiro Saitoh, Tadao Yoshino, Minoru Izawa, Ichiro Sakamoto
  • Patent number: 5006378
    Abstract: A polyethylene composite film suitable for packaging, which is superior in moistureproofness, flex-o-crack resistance, tearability and heat-sealing property, is provided comprising an oriented polyethylene film such that the degree of cross-linking inwardly decreases across the thickness of the film and at least one lamination layer, provided on one side of the oriented polyethylene film consisting of a lamination material having a heat shrinkage of less than 5% at 120.degree. C.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: April 9, 1991
    Assignee: Toa Neryo Kogyo Kabushiki Kaisha
    Inventors: Yasushi Itaba, Yutaka Yoshifuji, Takayoshi Kondo, Minoru Izawa, Ichiro Sakamoto, Tadao Yoshino
  • Patent number: 4900951
    Abstract: A latch-up restoration circuit for an electronic circuit generating a signal having a predetermined operating frequency such as a microcomputer, comprises a latch-up sensing device sensing a state that the frequency of the signal generated by the electronic circuit is on the outside of a predetermined frequency range and generating a latch-up detection signal, and a power supply inhibiting device inhibiting supply of a power current to the electronic circuit for a predetermined time period in response to the latch-up detection signal. The electronic circuit is automatically resumed to an initial state and the latch-up phenomenon is removed when the supply of the power current is restarted.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: February 13, 1990
    Assignee: Pioneer Electronic Corporation
    Inventors: Tadashi Saito, Ichiro Sakamoto, Shizuo Ando, Souhei Yamakawa